Ren, Jintao, Jesper Grau Eriksen, Jasper Nijkamp, and Stine Sofia Korreman. 2021. “Comparing Different CT, PET and MRI Multi-Modality Image Combinations for Deep Learning-Based Head and Neck Tumor Segmentation”. Acta Oncologica 60 (11):1399-1406. https://doi.org/10.1080/0284186X.2021.1949034.